US5266203A - Method for treating process streams containing cyanide and heavy metals - Google Patents
Method for treating process streams containing cyanide and heavy metals Download PDFInfo
- Publication number
- US5266203A US5266203A US07/828,314 US82831492A US5266203A US 5266203 A US5266203 A US 5266203A US 82831492 A US82831492 A US 82831492A US 5266203 A US5266203 A US 5266203A
- Authority
- US
- United States
- Prior art keywords
- stream
- cyanide
- membrane filtration
- filtration means
- membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 57
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 29
- 238000005374 membrane filtration Methods 0.000 claims abstract description 47
- 239000010970 precious metal Substances 0.000 claims abstract description 37
- 239000012528 membrane Substances 0.000 claims abstract description 30
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 150000002736 metal compounds Chemical class 0.000 claims abstract description 15
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 14
- 150000002825 nitriles Chemical class 0.000 claims abstract description 14
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 238000001223 reverse osmosis Methods 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 12
- 238000001728 nano-filtration Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000000108 ultra-filtration Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 150000003751 zinc Chemical class 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 2
- 229960001763 zinc sulfate Drugs 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 3
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims 2
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims 1
- 235000005074 zinc chloride Nutrition 0.000 claims 1
- 239000011592 zinc chloride Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- 239000010931 gold Substances 0.000 description 9
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000011575 calcium Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical group C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- -1 and the like Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical class [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 235000015165 citric acid Nutrition 0.000 description 2
- 238000000909 electrodialysis Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical class [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000005363 electrowinning Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003295 industrial effluent Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910021518 metal oxyhydroxide Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 150000002913 oxalic acids Chemical class 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical class N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/08—Obtaining noble metals by cyaniding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/04—Feed pretreatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/911—Cumulative poison
- Y10S210/912—Heavy metal
Abstract
Description
TABLE 1 ______________________________________ Typical Process Flow Diagram 1-Pass System Location Characteristics A B C D E F ______________________________________ Flow, g/m 75 75 75 25 50 60 Press, psig 40 40 40 200 10 100 Temp, °F. 40 40 40 41 42 40 pH 10.5 9.0 9.0 9.5 8.6 5.0 Total Dissolved Solids, 1,500 1,500 2,600 4,500 160 160 ppm Au, oz/ton of liquid 0.002 0.002 0.002 0.006 Cu,ppm 20 20 50 150 <2 <2 Ca, ppm 250 250 250 750 <5 <5 CN, ppm 200 200 200 550 20 20 Continuous/Occasionally Cont Cont Cont Cont Cont Occ ______________________________________
TABLE 2 __________________________________________________________________________ Typical Process Flow Diagram 2-Pass System LOCATION Characteristics A B C M N D E H I J K L __________________________________________________________________________ Flow, g/m 137 137 162 162 162 55 107 107 107 107 82 120 Press, psig 40 40 40 35 600 480 230 230 230 100 10 100 Temp, °F. 40 40 41 41 41 42 43 43 45 46 47 40 pH 10.5 9.0 9.1 9.1 9.1 9.5 8.6 8.6 10.0 10.4 9.8 5.0 Total Dissolved Solids, 1,500 1,500 1,400 1,400 1,400 4,600 140 150 165 600 10 10 ppm Au, oz/ton 0.002 0.002 0.002 0.002 0.002 0.006 0 0 0 0 0 0 Cu,ppm 20 20 25 25 25 75 <1 10 10 40 0 0 Ca, ppm 250 250 250 250 250 750 5 5 5 20 0 0 CN, ppm 200 200 180 180 180 500 20 20 20 80 1 1 Cont/Occ Cont Cont Cont Cont Cont Cont Cont Cont Cont Cont Cont Occ __________________________________________________________________________
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/828,314 US5266203A (en) | 1992-01-30 | 1992-01-30 | Method for treating process streams containing cyanide and heavy metals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/828,314 US5266203A (en) | 1992-01-30 | 1992-01-30 | Method for treating process streams containing cyanide and heavy metals |
Publications (1)
Publication Number | Publication Date |
---|---|
US5266203A true US5266203A (en) | 1993-11-30 |
Family
ID=25251443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/828,314 Expired - Lifetime US5266203A (en) | 1992-01-30 | 1992-01-30 | Method for treating process streams containing cyanide and heavy metals |
Country Status (1)
Country | Link |
---|---|
US (1) | US5266203A (en) |
Cited By (42)
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---|---|---|---|---|
US5476591A (en) * | 1993-05-25 | 1995-12-19 | Harrison Western Environmental Services, Inc. | Liquid treatment system and method for operating the same |
US5501798A (en) * | 1994-04-06 | 1996-03-26 | Zenon Environmental, Inc. | Microfiltration enhanced reverse osmosis for water treatment |
US5545805A (en) * | 1995-06-07 | 1996-08-13 | Chesner Engineering, Pc | Enhanced stabilization of lead in solid residues using acid oxyanion and alkali-metal carbonate treatment |
FR2737792A1 (en) * | 1995-08-11 | 1997-02-14 | Kodak Pathe | METHOD AND DEVICE FOR SELECTIVE EXTRACTION OF HALOGENIC IONS FROM PHOTOGRAPHIC BATHS |
WO1998056494A1 (en) * | 1997-06-09 | 1998-12-17 | Hw Process Technologies, Inc. | Method for separating and isolating precious metals from non precious metals dissolved in solutions |
WO1999033551A1 (en) * | 1997-12-31 | 1999-07-08 | Basx Systems, Llc | Methods to remove metals from water |
US5925255A (en) * | 1997-03-01 | 1999-07-20 | Mukhopadhyay; Debasish | Method and apparatus for high efficiency reverse osmosis operation |
US5961833A (en) * | 1997-06-09 | 1999-10-05 | Hw Process Technologies, Inc. | Method for separating and isolating gold from copper in a gold processing system |
EP0946268A1 (en) * | 1996-08-12 | 1999-10-06 | Debasish Mukhopadhyay | Method and apparatus for high efficiency reverse osmosis operation |
US6156186A (en) * | 1997-10-30 | 2000-12-05 | Hw Process Technologies, Inc. | Method for removing contaminants from process streams in metal recovery processes |
ES2156678A1 (en) * | 1998-07-31 | 2001-07-01 | Univ Catalunya Politecnica | Hollow fibre contactors based gold recuperation technique consists of treatment of cyanide solutions by means of liquid membranes |
EP1118683A1 (en) * | 2000-01-20 | 2001-07-25 | MEMBRAFLOW GMBH & CO. KG Filtersysteme | Membrane filter process and apparatus for the purification and/or treatment of suspensions of precious metal compounds |
WO2001062993A1 (en) * | 2000-02-22 | 2001-08-30 | Lakefield Oretest Pty Ltd | Process and apparatus for recovery of cyanide and metals |
US6306197B1 (en) | 2000-04-19 | 2001-10-23 | Seh America, Inc. | Isopropyl alcohol scrubbing system |
US6325983B1 (en) | 2000-04-19 | 2001-12-04 | Seh America, Inc. | Nox scrubbing system and method |
US6372143B1 (en) | 2000-09-26 | 2002-04-16 | Hydrometrics, Inc. | Purification of produced water from coal seam natural gas wells using ion exchange and reverse osmosis |
US20020166823A1 (en) * | 2001-05-05 | 2002-11-14 | Debasish Mukhopadhyay | Method and apparatus for treatment of feedwaters by membrane separation under acidic conditions |
US20030010720A1 (en) * | 2001-06-28 | 2003-01-16 | Ch2M Hill, Inc. | Carbon dioxide enhanced complex-adsorption process for metal or metalloid removal from water |
US6537456B2 (en) * | 1996-08-12 | 2003-03-25 | Debasish Mukhopadhyay | Method and apparatus for high efficiency reverse osmosis operation |
US20030069462A1 (en) * | 2000-03-07 | 2003-04-10 | Gary Fisher | Methods of destruction of cyanide in cyanide-containing waste |
US20030159990A1 (en) * | 2002-01-04 | 2003-08-28 | Collins John H. | Method of using water soluble polymers in a membrane biological reactor |
US20030196955A1 (en) * | 2002-04-17 | 2003-10-23 | Hughes Kenneth D. | Membrane based fluid treatment systems |
US20030205526A1 (en) * | 2002-05-02 | 2003-11-06 | Vuong Diem Xuan | Two stage nanofiltration seawater desalination system |
US20040168980A1 (en) * | 2002-01-04 | 2004-09-02 | Musale Deepak A. | Combination polymer treatment for flux enhancement in MBR |
US20060231491A1 (en) * | 1996-08-12 | 2006-10-19 | Debasish Mukhopadhyay | High purity water produced by reverse osmosis |
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US9138688B2 (en) | 2011-09-22 | 2015-09-22 | Chevron U.S.A. Inc. | Apparatus and process for treatment of water |
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Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4014787A (en) * | 1974-01-02 | 1977-03-29 | Systems Engineering & Manufacturing Corporation | Wastewater treatment |
US4040834A (en) * | 1975-02-18 | 1977-08-09 | Fuji Photo Film Co., Ltd. | Regeneration of photographic processing solutions |
US4312760A (en) * | 1980-02-19 | 1982-01-26 | Neville Roy G | Method for the removal of free and complex cyanides from water |
US4357254A (en) * | 1981-01-12 | 1982-11-02 | Chemical Sciences, Inc. | Cleaning composition |
US4394356A (en) * | 1980-09-25 | 1983-07-19 | Peuser Michael F | Recuperation of cyanides from rinsing solutions of cyanidric processes for eletrodeposition of metals |
US4462713A (en) * | 1982-06-01 | 1984-07-31 | Zurcher Allen K | Method for mining and reclaiming land |
US4574049A (en) * | 1984-06-04 | 1986-03-04 | Arrowhead Industrial Water, Inc. | Reverse osmosis system |
US4622149A (en) * | 1984-05-23 | 1986-11-11 | Inco Limited | Effluent treatment |
US4775480A (en) * | 1983-10-18 | 1988-10-04 | Gnb Incorporated | Membrane processes for treatment of and recovery of components from kraft black liquors |
US4851129A (en) * | 1988-04-19 | 1989-07-25 | Degussa Aktiengesellschaft | Process for the detoxification of effluents from ore processing operations with hydrogen peroxide, using a magnetic pre-separation stage |
US4880511A (en) * | 1986-05-16 | 1989-11-14 | Electroplating Engineers Of Japan, Limited | Process and apparatus for recovery of precious metal compound |
US4988444A (en) * | 1989-05-12 | 1991-01-29 | E. I. Du Pont De Nemours And Company | Prevention of biofouling of reverse osmosis membranes |
US5015396A (en) * | 1990-09-11 | 1991-05-14 | The Boc Group, Inc. | Removal of cyanide from aqueous streams |
US5017291A (en) * | 1990-10-24 | 1991-05-21 | Semler Industries, Inc. | Process for recycling and reconstituting flexographic inks |
US5087372A (en) * | 1989-03-24 | 1992-02-11 | Asahi Kasei Kogyo Kabushiki Kaisha | Method for removing heavy metal ions from contaminated water and a porous membrane usable therefor |
US5106508A (en) * | 1990-09-26 | 1992-04-21 | Klaus Schwitzgebel | Integrated process for cyanide and heavy metal removal from plating process waste streams |
US5112489A (en) * | 1990-07-04 | 1992-05-12 | Bucher-Guyer Ag Maschinenfabrik | Process and unit for clarification of liquids |
-
1992
- 1992-01-30 US US07/828,314 patent/US5266203A/en not_active Expired - Lifetime
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4014787A (en) * | 1974-01-02 | 1977-03-29 | Systems Engineering & Manufacturing Corporation | Wastewater treatment |
US4040834A (en) * | 1975-02-18 | 1977-08-09 | Fuji Photo Film Co., Ltd. | Regeneration of photographic processing solutions |
US4312760A (en) * | 1980-02-19 | 1982-01-26 | Neville Roy G | Method for the removal of free and complex cyanides from water |
US4394356A (en) * | 1980-09-25 | 1983-07-19 | Peuser Michael F | Recuperation of cyanides from rinsing solutions of cyanidric processes for eletrodeposition of metals |
US4357254A (en) * | 1981-01-12 | 1982-11-02 | Chemical Sciences, Inc. | Cleaning composition |
US4462713A (en) * | 1982-06-01 | 1984-07-31 | Zurcher Allen K | Method for mining and reclaiming land |
US4775480A (en) * | 1983-10-18 | 1988-10-04 | Gnb Incorporated | Membrane processes for treatment of and recovery of components from kraft black liquors |
US4622149A (en) * | 1984-05-23 | 1986-11-11 | Inco Limited | Effluent treatment |
US4574049A (en) * | 1984-06-04 | 1986-03-04 | Arrowhead Industrial Water, Inc. | Reverse osmosis system |
US4574049B1 (en) * | 1984-06-04 | 1999-02-02 | Ionpure Filter Us Inc | Reverse osmosis system |
US4880511A (en) * | 1986-05-16 | 1989-11-14 | Electroplating Engineers Of Japan, Limited | Process and apparatus for recovery of precious metal compound |
US4851129A (en) * | 1988-04-19 | 1989-07-25 | Degussa Aktiengesellschaft | Process for the detoxification of effluents from ore processing operations with hydrogen peroxide, using a magnetic pre-separation stage |
US5087372A (en) * | 1989-03-24 | 1992-02-11 | Asahi Kasei Kogyo Kabushiki Kaisha | Method for removing heavy metal ions from contaminated water and a porous membrane usable therefor |
US4988444A (en) * | 1989-05-12 | 1991-01-29 | E. I. Du Pont De Nemours And Company | Prevention of biofouling of reverse osmosis membranes |
US5112489A (en) * | 1990-07-04 | 1992-05-12 | Bucher-Guyer Ag Maschinenfabrik | Process and unit for clarification of liquids |
US5015396A (en) * | 1990-09-11 | 1991-05-14 | The Boc Group, Inc. | Removal of cyanide from aqueous streams |
US5106508A (en) * | 1990-09-26 | 1992-04-21 | Klaus Schwitzgebel | Integrated process for cyanide and heavy metal removal from plating process waste streams |
US5017291A (en) * | 1990-10-24 | 1991-05-21 | Semler Industries, Inc. | Process for recycling and reconstituting flexographic inks |
Non-Patent Citations (2)
Title |
---|
Mike Irish, "Heap Leaching and the 100 Year Flood", Feb. 1987, 14 pages, hand-out at Society of Mining Engineers Conference. |
Mike Irish, Heap Leaching and the 100 Year Flood , Feb. 1987, 14 pages, hand out at Society of Mining Engineers Conference. * |
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US5501798A (en) * | 1994-04-06 | 1996-03-26 | Zenon Environmental, Inc. | Microfiltration enhanced reverse osmosis for water treatment |
US5545805A (en) * | 1995-06-07 | 1996-08-13 | Chesner Engineering, Pc | Enhanced stabilization of lead in solid residues using acid oxyanion and alkali-metal carbonate treatment |
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US20060231491A1 (en) * | 1996-08-12 | 2006-10-19 | Debasish Mukhopadhyay | High purity water produced by reverse osmosis |
US6348154B1 (en) * | 1997-01-03 | 2002-02-19 | David R. Stewart | Methods to remove metals from water |
US5925255A (en) * | 1997-03-01 | 1999-07-20 | Mukhopadhyay; Debasish | Method and apparatus for high efficiency reverse osmosis operation |
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US6355175B1 (en) | 1997-06-09 | 2002-03-12 | Hw Process Technologies, Inc. | Method for separating and isolating precious metals from non precious metals dissolved in solutions |
AU748320B2 (en) * | 1997-06-09 | 2002-05-30 | Hw Process Technologies, Inc. | Method for separating and isolating precious metals from non precious metals dissolved in solutions |
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US5961833A (en) * | 1997-06-09 | 1999-10-05 | Hw Process Technologies, Inc. | Method for separating and isolating gold from copper in a gold processing system |
US6156186A (en) * | 1997-10-30 | 2000-12-05 | Hw Process Technologies, Inc. | Method for removing contaminants from process streams in metal recovery processes |
WO1999033551A1 (en) * | 1997-12-31 | 1999-07-08 | Basx Systems, Llc | Methods to remove metals from water |
ES2156678A1 (en) * | 1998-07-31 | 2001-07-01 | Univ Catalunya Politecnica | Hollow fibre contactors based gold recuperation technique consists of treatment of cyanide solutions by means of liquid membranes |
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US6635180B2 (en) | 2000-01-20 | 2003-10-21 | Membraflow Gmbh & Co. Kg Filtersysteme | Process and apparatus for the purification and/or treatment of suspensions |
US20030089619A1 (en) * | 2000-02-22 | 2003-05-15 | Sunil Jayasekera | Process and apparatus for recovery of cyanide and metals |
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US6596916B1 (en) | 2000-03-07 | 2003-07-22 | Waste Management, Inc. | Methods of destruction of cyanide in cyanide-containing waste |
US20030069462A1 (en) * | 2000-03-07 | 2003-04-10 | Gary Fisher | Methods of destruction of cyanide in cyanide-containing waste |
US6774277B2 (en) | 2000-03-07 | 2004-08-10 | Waste Management, Inc. | Methods of destruction of cyanide in cyanide-containing waste |
US6325983B1 (en) | 2000-04-19 | 2001-12-04 | Seh America, Inc. | Nox scrubbing system and method |
US6306197B1 (en) | 2000-04-19 | 2001-10-23 | Seh America, Inc. | Isopropyl alcohol scrubbing system |
US6372143B1 (en) | 2000-09-26 | 2002-04-16 | Hydrometrics, Inc. | Purification of produced water from coal seam natural gas wells using ion exchange and reverse osmosis |
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US6787041B2 (en) * | 2001-06-28 | 2004-09-07 | Ch2M Hill, Inc. | Carbon dioxide enhanced complex-adsorption process for metal or metalloid removal from water |
US20030010720A1 (en) * | 2001-06-28 | 2003-01-16 | Ch2M Hill, Inc. | Carbon dioxide enhanced complex-adsorption process for metal or metalloid removal from water |
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